5-1/2 Inch 20ppf Q125 Stainless Steel Coupled Casing
High-strength Q125 grade seamless stainless casing pipe, 5-1/2 inch OD (139.7 mm), 20 ppf, wall over 12.7 mm thick, with premium threaded couplings for deepwater drilling. Fits HTS 7304.24.30.20 for its seamless stainless steel construction tailored to oil/gas casing applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If having outside diameter 215.9 mm or more
OD size threshold splits the thick-wall casing subheadings.
If used in mechanical engineering applications
Non-drilling end-use reclassifies to general hollow profiles.
If made of alloy steel but not stainless
Stainless steel distinction moves it within 7304.24 vs other alloys.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Obtain advance ruling on grade classification; maintain records of pressure test results
• Common issue: confusing with drill pipe (different threading specs)
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